Solve the Square Root Equation: Finding X in √x = 7

To solve this problem, we will eliminate the square root by squaring both sides of the equation.

• Step 1: Start with the given equation:
  $\sqrt{x} = 7$
• Step 2: Square both sides of the equation to eliminate the square root:
  $(\sqrt{x})^2 = 7^2$
• Step 3: Simplify both sides:
  $x = 49$
• This calculation shows that when the square root of $x$ is 7, the value of $x$ must be 49 to satisfy the equation.

Therefore, the solution to the problem is $x = 49$. This matches the correct choice from the given multiple-choice options.